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Manifold Primer

THE MANIFOLD PRIMER/Water Trap (MP) is a device positioned between a water pump being primed and a source of vacuum pulling the water. It is designed to stop water flow when water reaches it. As a manifold primer it is used when the vacuum source is the intake manifold of a multiple-cylinder gasoline or LP gas engine, or brake booster of a vehicle. As a water trap it is used when the vacuum source is a vacuum pump. The manifold primer/water trap utilizes a mechanical float valve that stops airflow as water enters the unit, thus “trapping” and preventing the water from continuing past it.

Other Manifold Primer Names: Manifold Primer water pump, vaccum manifold primer, manifold vacuum primer, irrigation manifold pump, water manifold pump.

  • MP1000 – Has 3/8 NPT flow ports, IN at bottom and OUT at top. Mounting requires four 1/4″ bolts or screws. Water drains from the unit through the priming line.
  • MP2000 – Has 1/2 NPT IN and OUT flow ports on the bottom. Mounting requires two 1/4″ bolts or screws. Water drains from the unit through an umbrella valve on the bottom.

  • mp100-2000

 

FEATURES

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Can be mounted on any surface.

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Use on multiple cylinder gasoline or LPG engines.

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Durable clear housing allows operator to observe its functioning.

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Brass ball valve included.

 

 

 

 

  • INSTALLATION

    1. Mount the unit in position so that the float mechanism moves vertically and is at an elevation above the pump priming port.
    2. Use noncollapsible hose to connect the unit OUT port to the vacuum source, for example a tee fitting spliced into the vacuum line.
    3. Use noncollapsible hose to connect the unit IN port to the pump priming port, with the provided ball valve in between.
  • OPERATION

    1. Close the priming line ball valve.
    2. Close the pump discharge valve to prevent air being drawn through the discharge.
    3. Start the vacuum source.
    4. Open the priming line ball valve.
    5. When water enters unit, close priming line ball valve. (Water entering unit indicates pump is primed.)
    6. Start the pump and open the pump discharge valve.
    7. Stop the vacuum source then allow the water to drain from the unit

    *NOTE: If water does not flow from discharge, turn your pump OFF and repeat steps 2 through 5. When pump is discharging properly the priming line may be disconnected from primer and the engine providing vacuum turned OFF.

  • MAINTENANCE

      • Chamber housing should be kept clean in order to observe the float valve.*If necessary, remove the unit and flush with water or a mild soap solution. *Do not use any harsh cleanser or chemicals to clean the unit.
      • Use only soap and water to clean plastic parts.
      • Do not tighten tie bolts or plastic dome more than necessary to provide seal.
      • Keep the priming line ball valve closed when manifold primer/water trap not in use.
  • MP1000 Manifold Primer – Parts

    MP1000 STANDARD PARTS
    PART# DESCRIPTION
    M1001 Top Cover Assembly (See Lower Chart)
    M1002 Lower Cover
    M1003 Lower Housing
    M1004 Upper Housing
    M1005 Mounting Bracket (2 Req.)
    M1008 Float Assembly (See Lower Chart)
    M1010 Tie Bolt (3 Req.)
    M1012 Cork Gasket (3 Req.)
    M1014A Angle Valve (See Bottom Chart)
    MP1000 TOP COVER ASSEMBLY – # M1001
    PART# DESCRIPTION
    M1006 Top Cover Only
    M1007 Valve Stem Assembly (see Valve Stem Assembly chart below)
    M0051 Ball Assembly (see Ball Assembly chart below)
    MP1000 BALL ASSEMBLY – #M0051
    PART# DESCRIPTION
    M1018 Rubber Ball
    X0M62 Cotter Pin
    MP1000 VALVE STEM ASSEMBLY – #M1007
    PART# DESCRIPTION
    M1011 Cork Seal Washer
    M1019 Stainless Steel Spring
    M1021 Stainless Steel Washer (2 Req.)
    M1022 Plunger Rod
    X0M61 Retainer Clip
    X0M63 ³/32 x 1″ Cotter Pin
    MP1000 FLOAT ASSEMBLY – #M1008
    PART# DESCRIPTION
    M1009 Suction Cup
    M1013 Float Only
    MP1000 ANGLE VALVE ASSEMBLY – #M1014A
    PART# DESCRIPTION
    E0334 Brass Cock Valve
    X0E17 Close Nipple
    X0P67 ³/8″ Street Elbow
    MP1000 ACCESSORIES
    PART # DESCRIPTION
    X0D03 ¼-20″ Hex Nut (3 Req.)
  • MP2000 Manifold Primer – Parts

    MP2000 STANDARD PARTS
    PART# DESCRIPTION
    M2001 Cover Jar
    M2003 Umbrella Valve
    X0P73 1/2″ NPT Street Elbow (2 Req.)
    “*Please note that any additional parts not seen here are factory install only. Do not attempt to replace any items not seen in the above chart.”
    MP2000 ACCESSORIES
    PART # DESCRIPTION
    X0C23 ¼-20 x ¾” Machine Screw, Zinc Plated (2 Req.)
    X0M32 Retainer Clip (2 Req.)
    X0P72 ½” NPT Close Nipple
    X0T39 10-24 x ¾” Machine Screw, Stainless Steel

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BUSINESS HOURS :

M-Th 8:00 AM – 5:00 PM

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SHIPPING/RECEIVING :

M-F 8:00 AM – 3:00 PM

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PHONE :

(713) 667-6691

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FAX :

(713) 667-7867

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BILLING ADDRESS :

P.O. Box 478, Bellaire, TX 77402

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SHIPPING ADDRESS :

5116 Elm St, Houston, TX 77081

INDUSTRIES & APPLICATIONS

Agricultural
irrigation

Fire
Fighting

Chemical
plants

Construction

Drilling,
excavations

Processing
plants

Pulp mills

Water treatment
plants

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